Question

1. Chanice drives her scooter 7 kilometres north. She stops for lunch and then drives 5 kilometres east. What distance did she cover? What was her displacement?

Answer 1

i. Distance covered is 12 kilometres.

ii. Her displacement is 8.6 kilometres.

Step-by-step explanation:

Distance is a span of length between two points, while displacement is the distance moved in a specified direction. Distance is a scalar quantity, while displacement is a vector.

She drives 7 kilometres north, then 5 kilometres east later.

i. Distance covered = 5 + 7

= 12

Her distance covered is 12 kilometres.

ii. To determine her displacement, apply the Pythagoras rule to the sketch of her journey.

`x^(2)` =
`5^(2)` +
`7^(2)`

= 25 + 49

= 74

x =
`√(74)`

= 8.6023

Thus, her displacement is 8.6 kilometres.